Notes: 121710 PARALLEL PIN CARRARO STD N. 0-20-90 12X2 is original CARRARO product. 121710 PARALLEL PIN CARRARO STD N. 0-20-90 12X25 is commonly used in transmissions/axles/engines 135591, 138620, 138773, 139057, 139058, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849